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Lenk J, Hermann C, Matthé E, Pillunat LE, Sandner D. [Methotrexate in Atypical Non-Arteritic Ischemic Optic Neuropathy]. Klin Monbl Augenheilkd 2016; 234:924-929. [PMID: 27508886 DOI: 10.1055/s-0042-107948] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Background: Optic nerve disease can occur from a variety of different causes, with vascular, inflammatory or toxic pathologies. In such cases, it is hardly possible to clarify the aetiology. These diseases of the optic nerve are usually accompanied by progressive loss of visual field and visual impairment. Patient: We report a case of a 74-year-old woman complaining of loss of visual acuity, visual and blurred vision in the left eye in 2010. We made the diagnosis of non-arteritic ischemic optic neuropathy (NAION). With steroid therapy, there was an improvement in both visual acuity and visual field defects. But if an attempt was made to reduce steroids, her condition progressed. Except for a very small optic disk and arterial hypotension, there were no typical risk factors for NAION. We started treatment with methotrexate (MTX), with a starting dose of 10 mg per week, and observed the patient over two years. Results: Using MTX therapy, the swelling of the optic nerve head and visual field loss were reversible, so we increased the dose of MTX up to 15 mg/week. Steroid therapy could be stopped and the patient's visual acuity and visual field have now been stable for two years. There was no visible pallor in the optic nerve head, as normally occurs after AION, so we considered different underlying pathologies, including autoimmune disease. There were no adverse events with MTX therapy. Conclusion: If the course of the disease is atypical, the pathology may include an autoimmune component. Immunosuppressive MTX therapy may be started in order to avoid long-term steroid use. It may then be possible to maintain a stable visual field and prevent remitting episodes.
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Hermann C, Trowsdale J, Boyle LH. TAPBPR: a new player in the MHC class I presentation pathway. ACTA ACUST UNITED AC 2015; 85:155-66. [PMID: 25720504 DOI: 10.1111/tan.12538] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
In order to provide specificity for T cell responses against pathogens and tumours, major histocompatibility complex (MHC) class I molecules present high-affinity peptides at the cell surface to T cells. A key player for peptide loading is the MHC class I-dedicated chaperone tapasin. Recently we discovered a second MHC class I-dedicated chaperone, the tapasin-related protein TAPBPR. Here, we review the major steps in the MHC class I pathway and the TAPBPR data. We discuss the potential function of TAPBPR in the MHC class I pathway and the involvement of this previously uncharacterised protein in human health and disease.
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Ewald PP, Hermann C. XV. Gilt der Friedelsche Satz über die Symmetrie der Röntgeninterferenzen. Z KRIST-CRYST MATER 2015. [DOI: 10.1524/zkri.1927.65.1.251] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Cordel N, Hermann C, Claudéon J, Turolien Y, Hue K, Tressières B. Prévalence et distribution génotypique des infections génitales à HPV oncogènes chez les transplantées du rein afro-caribéennes (Guadeloupe). Ann Dermatol Venereol 2014. [DOI: 10.1016/j.annder.2014.09.482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Moyret-Lalle C, Vitton-Méa B, Ruiz E, Hermann C, Lam E, Puisieux A. 164: Interplay between EMT-inducers and miRNAs during breast tumorigenesis. Eur J Cancer 2014. [DOI: 10.1016/s0959-8049(14)50137-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Juluru K, Shih JC, Raj A, Comunale JP, Delaney H, Greenberg ED, Hermann C, Liu YB, Hoelscher A, Al-Khori N, Sanelli PC. Effects of increased image noise on image quality and quantitative interpretation in brain CT perfusion. AJNR Am J Neuroradiol 2013; 34:1506-12. [PMID: 23557960 DOI: 10.3174/ajnr.a3448] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE There is a desire within many institutions to reduce the radiation dose in CTP examinations. The purpose of this study was to simulate dose reduction through the addition of noise in brain CT perfusion examinations and to determine the subsequent effects on quality and quantitative interpretation. MATERIALS AND METHODS A total of 22 consecutive reference CTP scans were identified from an institutional review board-approved prospective clinical trial, all performed at 80 keV and 190 mAs. Lower-dose scans at 188, 177, 167, 127, and 44 mAs were generated through the addition of spatially correlated noise to the reference scans. A standard software package was used to generate CBF, CBV, and MTT maps. Six blinded radiologists determined quality scores of simulated scans on a Likert scale. Quantitative differences were calculated. RESULTS For qualitative analysis, the correlation coefficients for CBF (-0.34; P < .0001), CBV (-0.35; P < .0001), and MTT (-0.44; P < .0001) were statistically significant. Interobserver agreements in quality for the simulated 188-, 177-, 167-, 127-, and 44-mAs scans for CBF were 0.95, 0.98, 0.98, 0.95, and 0.52, respectively. Interobserver agreements in quality for the simulated CBV were 1, 1, 1, 1, and 0.83, respectively. For MTT, the interobserver agreements were 0.83, 0.86, 0.88, 0.74, and 0.05, respectively. For quantitative analysis, only the lowest simulated dose of 44 mAs showed statistically significant differences from the reference scan values for CBF (-1.8; P = .04), CBV (0.07; P < .0001), and MTT (0.46; P < .0001). CONCLUSIONS From a reference CTP study performed at 80 keV and 190 mAs, this simulation study demonstrates the potential of a 33% reduction in tube current and dose while maintaining image quality and quantitative interpretations. This work can be used to inform future studies by using true, nonsimulated scans.
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Bunk S, Trbic A, Winkler A, Weber A, Schwarz H, Reipert B, Hermann C. Intravenous Immunoglobulins Suppress Antibody-Dependent Effector Functions of Human Peripheral Blood Cells. J Allergy Clin Immunol 2012. [DOI: 10.1016/j.jaci.2011.12.907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Delgado E, Fuentes GA, Hermann C, Kunzmann G, Knözinger H. Site Characterization on Reduced and on Sulfided Mo/Al2O3 Catalysis by Adsorption of Probe Molecules. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/bscb.19840930815] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Boehm B, Hoberg R, Hermann C, Graf J, Knappstein S, Köppel R, Mannuß J, Hauner H, Boehme MWJ. Prävalenz des Diabetes mellitus Typ 1 und Typ 2 in Baden-Württemberg: Eine Analyse der Versicherten der AOK Baden-Württemberg 2006–2008. DIABETOL STOFFWECHS 2010. [DOI: 10.1055/s-0030-1255187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Stienen MN, Hermann C, Breuer T, Gautschi OP. [Pott's puffy tumor - severe course of a sinusitis]. PRAXIS 2010; 99:555-560. [PMID: 20449824 DOI: 10.1024/1661-8157/a000106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
The disease pattern <<Pott's puffy tumour>> describes a local frontal-bone osteomyelitis that arises from an external infection with consecutive sub-periostal expansion. Symptoms may develop slowly or not at all with a mostly indolent protuberance on the patient's forehead. Symptomatic illness often indicates secondary morbidities. Here, we present a complicated case with intracranial dissemination.
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Hermann C, Ilas J, Olas K, Teschner W, Schwarz H, Reipert B. Analysis of Fc-Receptor-Mediated Activities of New IgG Products Using a Novel THP-1 Cell-based Assay. J Allergy Clin Immunol 2010. [DOI: 10.1016/j.jaci.2009.12.311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Goubert L, Macfarlane G, Hermann C, Vervoort T. 59 Topical Seminar Summary: CHRONIC PAIN AND DISABILITY IN CHILDHOOD. Eur J Pain 2009. [DOI: 10.1016/s1090-3801(09)60062-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Kertai MD, Tiszai-Szûcs T, Varga KS, Hermann C, Acsády G, Gal J. Intraoperative use of packed red blood cell transfusion and mortality in patients undergoing abdominal or thoracoabdominal aortic aneurysm surgery. THE JOURNAL OF CARDIOVASCULAR SURGERY 2009; 50:501-508. [PMID: 19339959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
AIM A direct association between intraoperative use of red blood cell (RBC) transfusion and perioperative mortality in patients undergoing aortic aneurysm surgery has not been studied before. METHODS One thousand patients (mean age, 69.0 +/- 10.0 years; males 810) who underwent acute or elective abdominal or thoracoabdominal aortic aneurysm surgery between January 1999 and April 2007 at Semmelweis Medical University (Budapest, Hungary), were studied. Patients were evaluated for clinical risk factors, chronic medication use and surgical characteristics. Propensity score analysis was used to adjust for the potential bias in the intraoperative use of RBC transfusion. Multivariable logistic regression analyses were applied to study the association between the likelihood of intraoperative use of RBC transfusion and mortality occurring within 30 days of surgery. RESULTS Perioperative mortality occurred in 85 (8.5%) patients. Thirty-day mortality was significantly higher in patients who received intraoperative RBC transfusion compared to patients who did not receive it (1 or 2 units of RBCs, crude odds ratio [OR]: 6.2, 95% confidence interval [CI]: 1.8-21.0; P = 0.003; 3 or more units, OR: 35.7, 95% CI: 11.1-115.4; P < 0.0001). Even after correction for other baseline covariates and propensity for RBC transfusion intraoperative use of RBC transfusion was associated with increased 30-day mortality (1 or 2 units of RBCs, OR: 4.6, 95% CI: 1.1-18.5; P = 0.03; 3 or more units, OR: 4.0, 95% CI: 1.0-16.0; P = 0.05). CONCLUSIONS Intraoperative use of RBC transfusion in patients with acute or elective aortic aneurysm surgery is independently associated with an increased incidence of perioperative mortality.
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Koller M, Bona R, Hermann C, Horvat P, Martinz J, Neto J, Pereira L, Varila P, Braunegg G. Biotechnological production of poly(3-hydroxybutyrate) withWautersia eutrophaby application of green grass juice and silage juice as additional complex substrates. BIOCATAL BIOTRANSFOR 2009. [DOI: 10.1080/10242420500292252] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Hermann C, Gautschi OP, Hildebrandt G, Fournier JY. [Web based audiovisual patient information system--a pilot study of the preoperative patient information]. PRAXIS 2009; 98:695-701. [PMID: 19551654 DOI: 10.1024/1661-8157.98.13.695] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
A considerable part of the medical clinical daily routine incorporates the information of patients about medical diagnosis and especially about the scheduled operative intervention. The disease pattern, the course in the hospital before and after surgery and the operation itself will be discussed during these conversations. The patient has to be informed about all potential complications from a medico legal point of view. To optimise information delivery, auxiliary materials like charts, pictures, X-rays and models are used. Unfortunately, only a small percentage of the presented information is assimilated by the patient after strict verbal information. To inform patients better and earlier about medical details and internal processes before the operation, we developed a web-based audiovisual patient information system with a combination of pictures, text, tone and video about surgical interventions. The patient satisfaction could be markedly improved by the application of this patient information system in the informed consent process. Furthermore, the use of the web-based multimedia information portal may leads to an essential time saving for the medical staff.
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Küster O, Simon P, Mittelbronn M, Tabatabai G, Hermann C, Strik H, Dietz K, Roser F, Meyermann R, Schittenhelm J. Erythropoietin receptor is expressed in meningiomas and lower levels are associated with tumour recurrence. Neuropathol Appl Neurobiol 2009; 35:555-65. [PMID: 19298633 DOI: 10.1111/j.1365-2990.2009.01021.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
AIMS The Epo-EpoR pathway plays a role in tumour growth, metastasis and treatment resistance and is a potential target in oncological treatment. As the EpoR status in human meningiomas is unknown, our aim was to characterize EpoR expression in these tumours. METHODS We examined 131 meningioma samples of all WHO grades from 116 patients by immunohistochemistry for EpoR. Among these, 25 meningiomas showed brain invasion and 29 patients had a further tumour recurrence. A group of 20 patients without tumour recurrence served as controls. In 12 cases we were able to compare both the primary and the following recurrent tumours. The presence of EpoR in meningiomas was confirmed by RT-PCR and Western blot. RESULTS EpoR was expressed in all meningiomas. Statistical analysis revealed that the mean expression levels of EpoR were significantly lower in primary tumours with known recurrence compared with a recurrence-free control group. Additional matched pair analysis in individual cases showed no significant differences between primary and recurrent tumours. No significant correlation between EpoR expression and WHO grade, age, sex or brain invasion was detected. Using specific primer pairs for RT-PCR, we were able to detect all three known isoforms of EpoR: the full-length isoform EpoR-F, the truncated isoform EpoR-T and the soluble isoform EpoR-S. CONCLUSIONS Our results demonstrate the expression of EpoR in meningiomas. Lower EpoR mean levels might be a useful marker for a higher recurrence risk, but further studies are needed to clarify the influence of EpoR on recurrences and the role of the different isoforms.
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Scholz C, Hermann C, Toth B, Kainer F, Friese K, Jeschke U. Fetomaternale Transfusion bei Chorioamnionitis und Präekklampsie – Beteiligung der Entzündungsreaktion an einer Fetomaternalen Transfusion. Geburtshilfe Frauenheilkd 2008. [DOI: 10.1055/s-0028-1088768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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Scholz C, Hermann C, Kachler A, Kainer F, Friese K. Antikörperbasierte, durchflusszytometrische Evaluierug der Feto-Maternalen Transfusion. Geburtshilfe Frauenheilkd 2007. [DOI: 10.1055/s-2007-983569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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Goelz R, Bevot A, Rauscher-Lacher H, Jotzo M, Drescher F, Hamprecht K, Meisner C, Hermann C, Krägeloh-Mann I, Poets C. Kognitives Langzeitoutcome >4 Jahre von Frühgeborenen mit postnataler CMV-Infektion durch Muttermilch. Z Geburtshilfe Neonatol 2007. [DOI: 10.1055/s-2007-983086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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